KR20120075371A - Sheet heater - Google Patents

Sheet heater Download PDF

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Publication number
KR20120075371A
KR20120075371A KR1020110138377A KR20110138377A KR20120075371A KR 20120075371 A KR20120075371 A KR 20120075371A KR 1020110138377 A KR1020110138377 A KR 1020110138377A KR 20110138377 A KR20110138377 A KR 20110138377A KR 20120075371 A KR20120075371 A KR 20120075371A
Authority
KR
South Korea
Prior art keywords
glass
planar heater
glass fiber
metal wire
heater
Prior art date
Application number
KR1020110138377A
Other languages
Korean (ko)
Inventor
고지 노구치
고이치로 다케우치
Original Assignee
니폰 파이오니쿠스 가부시키가이샤
료유 고교 가부시키가이샤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JPJP-P-2010-291444 priority Critical
Priority to JP2010291444A priority patent/JP5529002B2/en
Application filed by 니폰 파이오니쿠스 가부시키가이샤, 료유 고교 가부시키가이샤 filed Critical 니폰 파이오니쿠스 가부시키가이샤
Publication of KR20120075371A publication Critical patent/KR20120075371A/en

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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B3/00Ohmic-resistance heating
    • H05B3/10Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B3/00Ohmic-resistance heating
    • H05B3/20Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B3/00Ohmic-resistance heating
    • H05B3/20Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H05B3/36Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heating conductor embedded in insulating material
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/004Heaters using a particular layout for the resistive material or resistive elements using zigzag layout

Abstract

PURPOSE: A sheet heater is provided to improve heat resistance and thermal conductivity by coating a metal line resistor with glass fiber or glass fiber cloth. CONSTITUTION: A glass textile(1) is contacted with a pipe. A glass textile(2) holds a metal line resistor(3). The metal line resistor is coated with glass fiber or glass fiber cloth. A sponge layer(4) surrounds the glass textile with the metal line resistor and comprises an elastically foamed resin layer.

Description

Surface heaters {SHEET HEATER}

The present invention relates to a surface heater using electrical energy for heating a pipe having a cylindrical or curved tube shape. More specifically, it is possible to heat a wide temperature range including a high temperature range of 150 ° C to 400 ° C, and has an excellent heat resistance and heat insulation, and relates to a lightweight planar heater.

Background Art Conventionally, planar heaters (mantle heaters, jacket heaters) for attaching to the outer surfaces of various pipes and for heating a fluid flowing through the pipes have been widely used.

As a heating element of such a heater, the glass fabric was impregnated with a synthetic resin (conductive resin) containing metal powder or metal oxide powder, or the like, and the conductive resin as described above was made of polyester, polyimide, mica, etc. The thing hold | maintained by application | coating or printing to the insulation base material sheet, the metal foil was etched into a circuit, or the metal resistance wire was enclosed in the insulation board sheet, and the circuit is used.

Both surfaces of the heating element as described above are covered with an electrical insulating material such as a silicone rubber sheet, a polyimide resin sheet, a mica sheet, and the like to form a heater mat. It coat | covers with and sets it as a surface heater. As such a planar heater, the heater of patent documents 1-3 is mentioned, for example.

Japanese Unexamined Patent Publication No. 10-64667 Japanese Unexamined Patent Publication No. 2002-295783 Japanese Unexamined Patent Publication No. 2003-68430

A heater mat having glass fabrics disposed on both surfaces thereof using a metal foil resistor or a metal wire resistor as a heat generating element and embedded in an electrically insulating rubber sheet such as silicone rubber can be used at a relatively high temperature of 150 ° C. or higher, and thus has excellent heat resistance. Is characterized. However, there was a drawback that the electrically insulating rubber sheet was heavy. For this reason, for example, in the narrow space where the piping with fittings, such as a seam, a valve, etc. in a chemical plant, or a curved pipe | entanglement is convoluted, the surface heater which is easy to attach and detach piping and is excellent in workability was calculated | required.

Accordingly, the problem to be solved by the present invention can be used in a wide temperature range including a region of relatively high temperature (about 150 ° C to 400 ° C) of 150 ° C or more, and is excellent in heat resistance, flexibility, lightness and excellent workability. It is to provide a surface heater.

MEANS TO SOLVE THE PROBLEM As a result of earnestly examining in order to solve these subjects, in the planar heater for heating the piping which has a cylindrical or curved tube shape, it is not used an electrical insulation material, such as an electrical insulation rubber sheet, and glass fiber yarn or glass. By using a metal wire resistor coated with a fiber cloth, it is held in a flexible fabric with a thick mesh and by a sewing thread or the like, and also has flexibility and is sandwiched by a thin glass fabric and a sponge layer, thereby providing heat resistance and flexibility. The present invention has been found by finding that a planar heater excellent in workability and excellent in workability can be obtained.

That is, the present invention is a planar heater for heating a pipe having a cylindrical or curved shape, the glass fabric having a metal wire resistor coated with a glass fabric, glass fiber yarn or glass fiber cloth from the side in contact with the pipe to the outside And a glass fabric having a structure arranged in the order of the sponge layer, wherein the glass fabric contacting the pipe has a thinner mesh than the glass fabric having the metal wire resistor.

The planar heater of this invention has the outstanding heat resistance since the metal wire resistor is coat | covered with glass fiber. Moreover, since the glass fabric which contacts a piping has a thin mesh structure, it is excellent in the thermal conductivity with respect to piping. In addition, since the outer heat insulation layer is a sponge layer and can be fixed by a sewing thread over the whole without using hardening components, such as an adhesive agent, it has the feature of being extremely flexible and light in weight. For this reason, the planar heater of the present invention is light and excellent in workability, and can be easily attached to or detached from a pipe even in a narrow space where pipes with accessories such as seams, valves, or bent pipes are intertwined. .

1 is a partially cut away perspective view showing an example of the planar heater of the present invention.
It is a perspective view which shows the example of arrangement | positioning relationship of the metal wire resistor and glass cloth in the surface heater of this invention.
3 is a cross-sectional view showing an example of the planar heater of the present invention.

The planar heater of the present invention is applied to a planar heater using electric energy for heating a pipe having a cylindrical or curved shape, but in particular, a planar heater for efficiently heating the pipe at a relatively high temperature (150 ° C to 400 ° C). Applies very well to

Hereinafter, although the surface heater of this invention is demonstrated based on FIGS. 1-3, this invention is not limited by this. 1 is a partially cutaway perspective view showing an example of the planar heater of the present invention. It is a perspective view which shows the example of arrangement | positioning relationship of the metal wire resistor and glass cloth in the surface heater of this invention. 3 is sectional drawing which shows an example of the surface heater of this invention.

The planar heater of the present invention is a planar heater for heating a pipe having a cylindrical or curved tube shape, and as shown in FIG. 1, the glass fabric 1, glass fiber yarn, or glass fiber cloth from the side in contact with the pipe to the outside. The glass fabric 2 having the structure arranged in the order of the glass fabric 2 and the sponge layer 4 which hold the metal wire resistor 3 covered by the glass fabric, and the glass fabric 1 which contacts a piping is a glass fabric 2 which has a metal wire resistor. It is a planar heater having a thinner mesh.

As the heat generating element used for the planar heater of the present invention, a metal wire resistor 3 coated with glass fiber yarn or glass fiber cloth is used. The metal wire resistor is fixed to the glass fabric 2 having a relatively mesh-like shape in a desired wiring pattern, but the fixing method is not particularly limited. As a fixing method, the method of fixing to the glass fabric 2 by sewing machine quality using the sewing thread which consists of glass fiber etc. is mentioned, for example. The arrangement relationship between the metal wire resistor and the glass fabric is usually such that the glass cloth 1 having a thin mesh becomes a layer in contact with a pipe, as shown in Figs. The metal wire resistor 3 is further disposed on the outer circumferential side thereof.

In addition, although the glass fabric 1 shown in FIG. 1 and FIG. 2 is one sheet | seat, in the surface heater of this invention, one or two or more types of glass fabrics of the same kind or another kind can be arrange | positioned further. In addition, a glass cloth having a metal wire resistor is usually coarse in shape and breathable, and a glass cloth in contact with a pipe can usually be made thin and non-breathable in mesh. The thickness of the glass fabric 1 is usually 0.01 to 1.0 mm, preferably 0.02 to 0.5 mm, and the thickness of the glass fabric 2 is usually 0.1 to 3.0 mm, preferably 0.2 to 2.0 mm. If the thickness is less than the lower limit, the strength is weak, and if the thickness is exceeded, there is a fear that flexibility and flexibility are lost.

Glass fiber wool and / or elastic foam resin can be used as a constituent material of the sponge layer 4 used for the planar heater of this invention. However, it is preferable to set it as the two-layer structure of a glass fiber wool layer and an elastic foamed resin layer toward the outer side from a piping side. Examples of the elastic foamed resin include foamed resins such as melamine resins, urethane resins, polyethylene resins, polyester resins, polystyrene resins, silicone resins, and phenol resins, but have moderate flexibility, flexibility, excellent heat insulating properties, and light weight. It is preferable to use a melamine resin or a silicone resin from the point. The thickness of the sponge layer 4 is 2-100 mm normally, Preferably it is 5-50 mm. The density is usually 0.005 to 0.2 g / cm 3, preferably 0.008 to 0.05 g / cm 3.

In the planar heater of the present invention, for example, as shown in Fig. 2, a plurality of glass fabrics are piled up so that the metal wire resistors are placed on top, and the sponge layers are piled up on the metal wire resistors. Produced by As a joining method, the method of stitching and fixing each layer by using the sewing thread which consists of heat resistant threads, such as glass fiber, is preferable. 3, the electrode 5 and the electric cord 6 are attached to the planar heater of this invention. In addition, if necessary, the band 7 and the fixing tool 8 may be attached to the outer surface so that the ends of the surface heaters can be coupled to each other.

Example

Next, although an Example demonstrates this invention concretely, this invention is not limited by these.

[ Example  One]

(Production of planar heater)

As shown in FIG. 2, a metal wire resistor coated on a surface of a glass cloth (net nose: 2 mm × 2 mm, thickness: 0.8 mm) having a mesh shape is sewn with a sewing machine made of glass fibers to sew a metal wire resistor. The snake was sealed in the shape of passing by and fixed. Next, a glass fabric having the above metal wire resistor was laminated on a non-breathable glass fabric (thickness: 0.25 mm), and further, glass fiber wool (thickness: 10 mm) and melamine foamed resin (thickness: 10 mm) thereon. Were stacked in this order.

The above laminate was deformed into a cylindrical shape by jig, and each layer was stitched together at the periphery using glass fiber yarn to be bonded to each other, and an electrode was inserted into some cutouts provided in the cylindrical shape, and an electric cord was installed and wired. Moreover, the band | pass and the fixing tool were attached to the outer surface, and the surface heater (inner diameter: 60 mm, length: 300 mm) shown in FIG. 3 was obtained. In addition, the density of the sponge layer of this surface heater was 0.01 g / cm <3>. The obtained surface heater did not have a texture like a lump inside, and was light and outstanding flexibility like a sponge as a whole.

(Evaluation of surface heater)

The planar heater obtained as described above was attached to a cylindrical tube made of stainless steel (length: 300 mm, outer diameter: 60 mm, thickness: 3 mm) and energized with an AC voltage of 100 V in a test room at 20 ° C at room temperature. It energized for 50 hours, adjusting temperature so that the surface temperature of the inner center part of the clearance might be 220 degreeC. In the meantime, the planar heater was able to heat the cylindrical cylindrical tube made of stainless steel efficiently and efficiently without causing problems such as lack of strength.

[ Example  2]

(Production of planar heater)

As shown in Fig. 2, a metal wire resistor coated on a surface of a glass cloth (net nose: 2 mm × 2 mm, thickness: 0.8 mm) having a mesh shape is sewn with a sewing machine made of glass fiber to sew a metal wire resistor. It sealed in this passing shape and fixed. Next, a glass fabric having the metal wire resistor was laminated on two non-breathable glass fabrics (thickness: 0.25 mm each), and a silicone foamed resin (thickness: 15 mm) was further laminated thereon in this order. .

The above laminate was deformed into a cylindrical shape by jig, and each layer was stitched together at the periphery using glass fiber yarn to be bonded to each other. Moreover, the band | pass and the fixing tool were attached to the outer surface, and the surface heater (inner diameter: 60 mm, length: 300 mm) shown in FIG. 3 was obtained. In addition, the density of the sponge layer of this surface heater was 0.012g / cm <3>. The obtained surface heater did not have a texture like a lump inside, and was light and outstanding flexibility like a sponge as a whole.

(Evaluation of surface heater)

The planar heater obtained as described above was attached to a cylindrical tube made of stainless steel (length: 300 mm, outer diameter: 60 mm, thickness: 3 mm) and energized with an AC voltage of 100 V in a test room at 20 ° C at room temperature. It energized for 50 hours, adjusting temperature so that the surface temperature of the inner center part of the clearance may be 180 degreeC. In the meantime, the planar heater was able to heat the cylindrical cylindrical tube made of stainless steel efficiently and efficiently without causing problems such as lack of strength.

As described above, the planar heater of the present invention is light and excellent in workability, and can be easily attached to or detached from a pipe even in a narrow space in which a pipe with an accessory such as a seam or a valve or a bent pipe is entangled. .

1 glass fabric
2 glass fabric with metal wire resistor
3 metal wire resistor
4 sponge layer
5 electrodes
6 electrical cord
7 bands
8 fixing tools

Claims (5)

  1. A planar heater for heating a pipe having a cylindrical or curved shape,
    A glass fabric having a configuration arranged in the order of a first glass fabric, a glass fiber yarn or a second glass fabric having a metal wire resistor coated with a glass fiber cloth and a sponge layer from the side in contact with the pipe to the outside; The planar heater characterized by having a thinner mesh than the glass cloth which has this metal wire resistor.
  2. The method according to claim 1,
    A planar heater in which a metal wire resistor coated with glass fiber yarn or glass fiber cloth is held on a glass fabric by a sewing thread.
  3. The method according to claim 1,
    A planar heater in which each layer from the glass fabric to the sponge layer is joined by a sewing thread.
  4. The method according to claim 1,
    The sponge layer is a planar heater which consists of a glass fiber wool layer and an elastic foamed resin layer toward the outer side from the piping side.
  5. The method of claim 4,
    A planar heater, wherein the elastic foamed resin is melamine foamed resin or silicone foamed resin.
KR1020110138377A 2010-12-28 2011-12-20 Sheet heater KR20120075371A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JPJP-P-2010-291444 2010-12-28
JP2010291444A JP5529002B2 (en) 2010-12-28 2010-12-28 Sheet heater

Publications (1)

Publication Number Publication Date
KR20120075371A true KR20120075371A (en) 2012-07-06

Family

ID=46675548

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110138377A KR20120075371A (en) 2010-12-28 2011-12-20 Sheet heater

Country Status (3)

Country Link
JP (1) JP5529002B2 (en)
KR (1) KR20120075371A (en)
TW (1) TWI461092B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6725830B2 (en) 2002-06-04 2004-04-27 Ford Global Technologies, Llc Method for split ignition timing for idle speed control of an engine
US6745747B2 (en) 2002-06-04 2004-06-08 Ford Global Technologies, Llc Method for air-fuel ratio control of a lean burn engine
US6715462B2 (en) 2002-06-04 2004-04-06 Ford Global Technologies, Llc Method to control fuel vapor purging
US6736120B2 (en) 2002-06-04 2004-05-18 Ford Global Technologies, Llc Method and system of adaptive learning for engine exhaust gas sensors
US6758185B2 (en) 2002-06-04 2004-07-06 Ford Global Technologies, Llc Method to improve fuel economy in lean burn engines with variable-displacement-like characteristics
US6736121B2 (en) 2002-06-04 2004-05-18 Ford Global Technologies, Llc Method for air-fuel ratio sensor diagnosis
US6735938B2 (en) 2002-06-04 2004-05-18 Ford Global Technologies, Llc Method to control transitions between modes of operation of an engine
US6769398B2 (en) 2002-06-04 2004-08-03 Ford Global Technologies, Llc Idle speed control for lean burn engine with variable-displacement-like characteristic
US7159387B2 (en) 2004-03-05 2007-01-09 Ford Global Technologies, Llc Emission control device

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JPH0721165Y2 (en) * 1989-11-27 1995-05-17 東邦レーヨン株式会社 Heating chair
JP3464248B2 (en) * 1993-09-03 2003-11-05 富士ケミカル株式会社 Planar heating element
US5714738A (en) * 1995-07-10 1998-02-03 Watlow Electric Manufacturing Co. Apparatus and methods of making and using heater apparatus for heating an object having two-dimensional or three-dimensional curvature
JP3177454B2 (en) * 1996-08-12 2001-06-18 サーモス株式会社 Mantle heater and a method of manufacturing the same
JP3177453B2 (en) * 1996-08-12 2001-06-18 サーモス株式会社 Mantle heater
JPH11140788A (en) * 1997-11-12 1999-05-25 Mitsubishi Paper Mills Ltd Glass paper for electric floor heating panel and panel for control panel type floor heating using the same paper
JP2002228087A (en) * 2001-02-06 2002-08-14 Nitta Moore Co Fiber glass tape for heat insulation
JP3752583B2 (en) * 2001-03-30 2006-03-08 サーモス株式会社 Mantle heater and manufacturing method thereof
JP2003347017A (en) * 2002-05-29 2003-12-05 Toshio Ishizuka Covered heater wire and electrothermal heater
JP2005071930A (en) * 2003-08-27 2005-03-17 Mitsui Kozan Material Kk Heating element unit and electric heater
US20090107986A1 (en) * 2005-02-17 2009-04-30 David Naylor Three layer glued laminate heating unit
JP2007224208A (en) * 2006-02-24 2007-09-06 Alpha Oikos:Kk Fluorine rubber sheet and planar heater using fluorine rubber sheet and method for producing the same heater
JP5133159B2 (en) * 2008-07-11 2013-01-30 日本パイオニクス株式会社 Sheet heater
JP2010097809A (en) * 2008-10-16 2010-04-30 Blueball Co Ltd Electrothermal heater

Also Published As

Publication number Publication date
JP2012138308A (en) 2012-07-19
JP5529002B2 (en) 2014-06-25
TW201236496A (en) 2012-09-01
TWI461092B (en) 2014-11-11

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